The pineal organ (Second of two parts).

@article{Wurtman1977ThePO,
  title={The pineal organ (Second of two parts).},
  author={RichardJ. Wurtman and MichaelA. Moskowitz},
  journal={The New England journal of medicine},
  year={1977},
  volume={296 24},
  pages={
          1383-6
        }
}
BETA